Marcus Tuttle (10 May 1830 – 8 January 1884) was an American politician.
Tuttle attended school in Clinton, Oneida County, New York, where his family had relocated in 1842.
He served one term as Cerro Gordo County judge, and was subsequently named an internal revenue assessor for Cerro Gordo and three neighboring counties.
Tuttle resigned from the assessor post upon his election to the Iowa Senate in 1867.
Two years later, Tuttle was redistricted, and completed his term as a state senator representing District 46.